Q: Is 3,215,940 a Composite Number?

Why is 3,215,940 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 3,215,940 can be evenly divided by 1 2 3 4 5 6 7 10 12 13 14 15 19 20 21 26 28 30 31 35 38 39 42 52 57 60 62 65 70 76 78 84 91 93 95 105 114 124 130 133 140 155 156 182 186 190 195 210 217 228 247 260 266 273 285 310 364 372 380 390 399 403 420 434 455 465 494 532 546 570 589 620 651 665 741 780 798 806 868 910 930 988 1,085 1,092 1,140 1,178 1,209 1,235 1,302 1,330 1,365 1,482 1,596 1,612 1,729 1,767 1,820 1,860 1,995 2,015 2,170 2,356 2,418 2,470 2,604 2,660 2,730 2,821 2,945 2,964 3,255 3,458 3,534 3,705 3,990 4,030 4,123 4,340 4,836 4,940 5,187 5,460 5,642 5,890 6,045 6,510 6,916 7,068 7,410 7,657 7,980 8,060 8,246 8,463 8,645 8,835 10,374 11,284 11,780 12,090 12,369 13,020 14,105 14,820 15,314 16,492 16,926 17,290 17,670 20,615 20,748 22,971 24,180 24,738 25,935 28,210 30,628 33,852 34,580 35,340 38,285 41,230 42,315 45,942 49,476 51,870 53,599 56,420 61,845 76,570 82,460 84,630 91,884 103,740 107,198 114,855 123,690 153,140 160,797 169,260 214,396 229,710 247,380 267,995 321,594 459,420 535,990 643,188 803,985 1,071,980 1,607,970 and 3,215,940, with no remainder.

Since 3,215,940 cannot be divided by just 1 and 3,215,940, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).